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asbio (version 1.9-7)

beetle: Wood boring beetle data

Description

Saint Germain et al. (2007) modeled the presence absence of a saprophytic wood boring beetle (Anthophylax attenuatus) as a function of the wood density of twenty-four decaying aspen trees (Populus tremuloides) in Western Quebec Canada.

Usage

data(beetle)

Arguments

Format

A data frame with 24 observations on the following 4 variables.

Snag

Snag identifier

Yrs.since.death

The number of years since death, determined using dendrochronological methods.

Wood.density

The density of the decaying wood (dry weight/volume) in units of g cm\(-3\).

ANAT

Beetle presence/absence (1/0)